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Cotton fabric hydrophobic finishing method based on acetic anhydride-acrylics-electron beam technique

A technology of acrylates and acetic anhydride pre-esters, applied in fiber processing, plant fibers, textiles and papermaking, etc., can solve the problems that low surface substances cannot effectively cover fabrics, and the hydrophobicity of fabrics cannot be improved, so as to avoid pollution and cost. Problem, significant social and economic significance, small effect of fabric damage

Active Publication Date: 2016-01-06
高青如意纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After electron beam irradiation, low-surface substances cannot effectively cover the fabric, and the fabric's hydrophobicity cannot be improved

Method used

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  • Cotton fabric hydrophobic finishing method based on acetic anhydride-acrylics-electron beam technique
  • Cotton fabric hydrophobic finishing method based on acetic anhydride-acrylics-electron beam technique
  • Cotton fabric hydrophobic finishing method based on acetic anhydride-acrylics-electron beam technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Fabric: pure cotton woven fabric (40S×40S / 133*72)

[0030] 1) Cotton fiber pre-esterified with acetic anhydride

[0031] Prescription: Acetic Anhydride

[0032] Iodine 2g / L

[0033] Bath ratio 1:25

[0034] Method: The cotton fabric is soaked in the above-mentioned acetic anhydride, and treated at room temperature for 2 hours. Reduction with saturated sodium thiosulfate until the dye solution is colorless, washed with water and dried for later use.

[0035] 2) After the cotton fabric is soaked in the organic solution containing acrylate compounds for 1 min, the excess solution is pressed by the paddle

[0036] Prescription: n-Hexyl Methacrylate: 20%

[0037] Solvent: Methanol

[0038] Method: The fabric is dipped and rolled in the reaction solution once, and the excess rate is about 60%.

[0039] 3) After electron beam irradiation, oven dry the fabric

[0040] Method: The irradiation dose is 33KGy, and the oven is dried at 105°C for 2 minutes after irradiation. ...

Embodiment 2

[0046] Fabric: pure cotton woven fabric (40S×40S / 133*72)

[0047] 1) Cotton fiber pre-esterified with acetic anhydride

[0048] Prescription: Acetic Anhydride

[0049] Iodine 1g / L

[0050] Bath ratio 1:25

[0051] Method: The cotton fabric is soaked in the above-mentioned acetic anhydride, and treated at room temperature for 3 hours. Reduction with saturated sodium thiosulfate until the dye solution is colorless, washed with water and dried for later use.

[0052] 2) After the cotton fabric is soaked in an organic solution containing acrylate compounds for 10 minutes, the excess solution is pressed by a paddle

[0053] Prescription: Stearyl Acrylate: 50%

[0054] Solvent: ethanol

[0055] Method: The fabric is soaked and rolled in the reaction solution once, and the rolling rate is about 100%.

[0056] 3) After electron beam irradiation, oven dry the fabric

[0057]Method: The irradiation dose is 45KGy, and the oven is dried at 60°C after irradiation.

[0058] Table 2...

Embodiment 3

[0063] Fabric: pure cotton woven fabric (40S×40S / 133*72)

[0064] 1) Cotton fiber pre-esterified with acetic anhydride

[0065] Prescription: Acetic Anhydride

[0066] Iodine 3g / L

[0067] Bath ratio 1:40

[0068] Method: The cotton fabric is soaked in the above-mentioned acetic anhydride, and treated at room temperature for 1 hour. Reduction with saturated sodium thiosulfate until the dye solution is colorless, washed with water and dried for later use.

[0069] 2) After the cotton fabric is soaked in an organic solution containing acrylate compounds, the excess solution is pressed by a paddle

[0070] Prescription: lauryl acrylate and n-octadecyl methacrylate (1:1g / g): 20%

[0071] Solvent: methanol + isopropanol + butanol (1:1:1)

[0072] Method: The fabric is dipped in the reaction solution once and rolled, and the rolling rate is about 100%.

[0073] 3) After electron beam irradiation, oven dry the fabric

[0074] Method: The irradiation dose is 65KGy, and the ove...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a cotton fabric hydrophobic finishing method based on acetic anhydride-acrylics-electron beam technique and belongs to the field of functional textiles. According to the method, cotton fiber is esterified with acetic anhydride firstly, and then cotton fabric is treated with an acrylic reagent dissolved in an alcohols solvent by means of electron beams, so that textiles with hydrophobic property are obtained. Compared with alkanes or olefin solvents, the alcohols solvent has the advantages of being low in toxicity, low in irritation, low in cost and the like. By the adoption of the method, environment problems caused by perfluorinated hydrophobic auxiliaries can be avoided, chemical bonding between fiber macromolecules and functional macromolecules can be achieved through electron beam irradiation, an obtained product is high in uniformity and repeatability and low in cost, and the degree of damage to fabric is low. The method can be used for hydrophobic finishing of cotton fabric.

Description

technical field [0001] The invention relates to a cotton fabric hydrophobic finishing method based on acetic anhydride-acrylic ester-electron beam technology, belonging to the field of functional textiles. Background technique [0002] Hydrophobic materials have been paid more and more attention to in people's daily life and industrial production. For example: medical staff clothing, self-cleaning, high-end clothing, outdoor clothing, etc., hydrophobic materials have played an important role. There are a lot of hydrophilic groups in the cotton fiber structure, and the porous structure with more voids makes it easy to be polluted by various polluting liquids. Therefore, the research and preparation of cotton fabrics with hydrophobic properties has certain use value and immeasurable value. economic significance. [0003] The hydroxyl groups on the chemical structure of cotton fibers are chemically active and can react with hydrophobic reagents to prepare hydrophobic products...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D06M14/22D06M13/188D06M101/06
Inventor 杜金梅董晶张璐璐王鸿博许长海
Owner 高青如意纺织有限公司
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